Sesto San Giovanni to Viterbo trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Sesto S. Giovanni and arrive at Viterbo Porta Fiorentina every about 3 hours on average. If travelling with Trenitalia, you need to know the Sesto San Giovanni to Viterbo train schedule: the first train leaves at 06:29, while the last ride is at 13:16. A Sesto San Giovanni to Viterbo train cost about 86.2 €. But how long is the train ride from Sesto San Giovanni to Viterbo? Your journey takes about 7 hours on average.